Adjustable louver blind



Patented May 17, 1938 UNITED STATES PATENT OFFICE ADJUSTABLE IDUVER BLIND Pedro Gran, Miami, Fla.

Application January 16, 1937, Serial No.

3 Claims.

The invention relates to adjustable louver blinds and more especially to blinds.

double columnar louver The primary object of the invention is the 5 provision of a blind of same when hung at a this character, wherein the window and on adjustment will regulate the admission of air and light to an enclosure as well as the direction of the air passing through the blind, the latter being composed of two series of being independently adjustable lation to each other or blinds or louvers, these as to angular refor the disposition in, the

same plane one with the other in the respective series and, in this will be regulated in manner ventilation and light the use of such blind.

A further object of the invention is the provision of a blind of this character, wherein the two series of blades are combined and arranged in parallelism and horizontally between outer and intermediate bands so that the blades placed beries may adopt or those blades of the synchronize the disposition of next series and in this fashion there can be eifcted difierent degrees of lighting and ventilation and the directional how of air in the'use of the blind.

A still further object 'or provision of a blind of simple in construction,

efllcient in its operation, .appearance, durable, readily the invention is the this character, which is thoroughly reliable and neat and attractive in and easily adjusted,

and inexpensive to manufacture.

With these and,

other objects in view, the invention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in the accompanying drawing, which discloses the preferred embodiment of the invention and pointed out in the claims hereunto appended.

In the accompanying drawing:

Figure 1 is a fragmentary perspective view of a blind constructed in accordance with the invention.

Figure 2 isa side edge elevation showing by full lines the louvers or blades of the blind in the adjusted position shown in Figure 1 while by boards. inclusive are views similar to Figure 2 showing varying adjustments eifected by the blind.

Similar reference characters indicate corresponding parts throughout the several views in the drawing. 5

Referring to the drawing in detail, A designates generally a portion of a blind constructed in accordance with the invention and comprises two series or double columnar disposed 'flat blades or louvers l0 and II, respectively, which in the series or columns are disposed between intermediate and outer pairs of suspension strips or bands I! and I3, respectively, the series or columns of the said louvers or blades being disposed at opposite sides of the bands or strips l2 which are fixedly suspended overhead at a window or other opening in any approved or well known manner while the strips or bands i3 at their lower ends are suitably attached to a saddling board ll, the upper ends being also suitably attached to adjustable sloping head boards l5, these being hinged at l6 and such head boards are adjustable in any desired manner or similarly. to the adjustment of a Venetian" blind.

Trained through suitable holes l'I provided in each of the louvers or blades l0 and l I, preferably near opposite ends thereof are raising and lowering cords l8, these being made secure or anchored to the s'addli'ng board l4 and by manipulating the cords the blind in its entirety can be raised or lowered, these cords 18 being manually operated similarly to those of the Venetian V blind.

The louvers or blades l0 and H in the two series or columns under the arrangement thereof in the blind may be adjusted in difierent ways, that is to say, by adjustment of the bands or strips IS, the said blades or louvers can be angularly disposed with respect to each other and independent angular adjustment of one series may be had relative to the other or by arranging the intermediate strips or bands 12 for adjustment and having the outer strips or bands l3 fixedly suspended angular adjustment of the blades or louvers of both series or columns may be had yet by this latter arrangement the said louvers. or blades will ascend and descend thus effecting three positions thereof, one in which all of the blades are parallel and horizontal, one in which each pair of blades or louvers make an angle with the apex looking up and the last in which all the blades or louvers form an angle with an inferior apex.

It is, of course, understood that the louvers or blades i0 and II are hinged to the intermediate As has been stated, the bladesor louvers I0 and II of the blind can be lifted and nested by manipulation of the cords l8 similarly to the "Venetian blind using two series of cords, one for each series of blades or louvers.

The blind hereinbefore described can be used at all kinds of windows and anywhere light and air is to be controlled.

The blind under the construction described and illustrated in the drawing afiords a means by which only the air can be made to enter downwardly within an enclosure to prevent the inside light of such enclosure from being seen from the outside thereof and the sun rays from penetrating the interior of such enclosure.

As previously stated, the blind may be associated 'with any of the well known methods used in order to raise or lower the same "and for manipulating v the bands or strips for altering the position of the blades or louversin the respective columns or series either independently or together.

It is also to be understood that the strips or bands l3 may be attached at l9 to the lowermost louvers of the series and such outside strips or bands can be fixed or movable as may be required.

' As has been stated, the blades or louvers l0 and I I of the blind can be lifted and nestedby manipulation of the cords l8 similarly to the Venetian columnar series of louvers, intermediate and outer bands disposed between and outside of said louvers, a .saddling board connected, with the outer bands, slopeflboards, hinged to each other and connected to the intermediate and outer bands, and means connected with the saddling board for effecting the raising and lowering of '5 the louvers for the collapsing or extending of said blind.

2. In a blind, the combination of a plurality of I 'columnar series of louvers, intermediate and outer bands disposed between and outside of said louvers, a saddling board connected with the outer bands, slope boards hinged to each other and connected to the intermediate and outer. bands, means connected with the saddlingboard for effecting the raising and lowering of the louvers for the collapsing or extending of said blind, and swinging connections between the louvers and the intermediate and outer bands.

3. A Venetian blind comprising double columnar arranged spaced louvers, flexiblesupports hanging the louvers vertically spaced from each other in the double columnar order for angular adjustment of the louvers of either column with respect to each other and independent of one another, and means active for contracting and extending of said flexible supports.

PEDRO GRAU. 

